CN100466914C

CN100466914C - Subpressure grain storing method and device

Info

Publication number: CN100466914C
Application number: CNB2006101367225A
Authority: CN
Inventors: 宋光源
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-19
Filing date: 2006-11-19
Publication date: 2009-03-11
Anticipated expiration: 2026-11-19
Also published as: CN101036483A

Abstract

The invention discloses a vacuum grain storage method and device thereof, which are suitable for control of pest in the grain depot and drying stored grain with high water content. The method comprises the steps of producing enclosed storage space, mounting and coupling air vacuum device with the enclosed storage space to form a vacuum environment for monitoring. Compared with prior art, the invention is characterized in that the invention is a physical and environment-friendly method without the need to use any chemical agent or other matter, and any bad influence on the quality of grain and environment; the invention can be widely applied for grain, oil, tobacco, and cotton, etc in an enclosed container, storehouse, and stack; the method is provided with good insecticidal effect, especially for larva and imago; by using the grain storage method, grain can be dried by vacuum dehydration without being moved, which can save cost; the vacuum dehydration can be carried out without dead corner containing high water content; the dehydration speed is more quick than ventilation dehydration; and grain quality can not be changed by using the method in the invention.

Description

Subpressure grain storing method and equipment

Technical field

The present invention relates to the method and apparatus of storages such as grain and oil, tobacco, linen-cotton, be specially adapted to the precipitation drying of the grain storage pest controlling and the high-moisture grain behind the warehouse-in of big or small grain depot.

Background technology

At present, Chinese Reserved Grain Management Geaeral Co. applies four grain storage new technologies in China: grain information monitoring system; The phosphine fumigation technology; The force ventilation technology; The cereal cooling technology.As seen, kill the still bound chemical agent of grain storage pest, it is residual to exist chemical agent in the grain to some extent, influences grain quality.For the processing of high-moisture grain, the main at present method that adopts Exposure to Sunlight, oven dry, force ventilation needs the cost great amount of manpower to pull grain down, and labour intensity is big, and rate of drying is also slow.

Summary of the invention

The present invention is directed to the deficiency of above-mentioned existing grain storage technology, be intended to release a kind of new method and equipment of Subpressure grain storing, the target of two aspects is specifically arranged: one kills grain storage pest under the prerequisite of not using any chemical agent, and does not influence grain quality; Two under the prerequisite of mobile high-moisture grain not, reduces grain moisture content in a short time, improves the stability of foodstuff preservation.For this reason, technical scheme of the present invention is: make airtight storage space, as warehouse, container, the stacking of good leak tightness, connection air negative pressure equipment is installed, make this airtight storage space formation subnormal ambient and carry out observing and controlling.So-called negative pressure space is meant vacuum or near the environment of vacuum, promptly refers to less than 1 atmospheric pressure or less than the pressure of 760 millimetress of mercury of standard.

The principle of storing grain method of the present invention is fully aware of, and it comprises negative pressure desinsection and two aspects of negative pressure drying: one, grain etc. are stored in the negative pressure space, and relying on the biology of breathing existence in the grain heap can not eupnea and death; Its two, reduce grain moisture content, in fact drying grain is exactly to impel grain desorb moisture, under the negative pressure space, can force grain desorb moisture.High-moisture grain uses air negative pressure equipment to take the damp-heat air in the grain heap away the formation negative pressure under airtight environment, and at this moment the intercellular free water of grain intragranular gathers in capillary; Meanwhile, to the dry air that charges in the grain heap outside the storehouse, high-moisture grain grain at this moment is in the environment of dry air again, and the moisture in the grain grain capillary spreads in dry air and reaches balance; Take damp-heat air once more away, so circulation is up to grain drying.After the drying, keep confined space to be in the stable subnormal ambient.

Storing grain method of the present invention and equipment have been compared outstanding advantage with prior art.The desinsection aspect: our physical pest killing owned by France, do not use any chemical agent or other material to kill grain storage pest, qualities such as grain, surrounding environment without any negative effect, are belonged to the environment-protecting pesticide method; Applied widely, all grain of being convenient in airtight warehouse, container, the stacking, oil plant, tobacco, linen-cotton etc. needs desinsection, can adopt this method desinsection; Good disinsection effect, various insects, particularly larva, the adult at any position in all this environment can both cause death, and the length of desinsection time is relevant with the negative pressure degree of confined space.Dry aspect: negative pressure precipitation does not need mobile grain, reduces the expense of pulling down; Negative pressure precipitation is thorough, does not have the high-moisture dead angle; Precipitation speed is fast, is better than force ventilation precipitation; Do not influence grain quality.

Description of drawings

Fig. 1, device structure block diagram of the present invention.

Among the figure: 1, motor, 2, vavuum pump, 3, air outlet, 4, outlet air humidity checkout gear, 5, switch, 6, the vacuum automaton, 7, check-valves, 8, vacuum meter, 9, air filter, 10, switch, 11, vacuum meter, 12, switch, 13, charge into the air humidity checkout gear, 14, switch, 15, the dead observation device of insect, 16, air inlet, 17, the seal storage space, 181,182,183, main pipe.

The specific embodiment

Below, introduce the specific embodiment of the present invention.

Subpressure grain storing method of the present invention and equipment, its method are to make seal storage space 17, install to connect air negative pressure equipment, make this seal storage space 17 form subnormal ambient and subnormal ambient is carried out observing and controlling.

Subpressure grain storing method of the present invention and equipment, its equipment comprises motor 1, vavuum pump 2, air outlet 3, outlet air humidity checkout gear 4, switch 5, vacuum automaton 6, check-valves 7, vacuum meter 8, air filter 9, switch 10, vacuum meter 11, switch 12, charges into air humidity checkout gear 13, switch 14, the dead observation device 15 of insect, air inlet 16, seal storage environment 17, main pipe 181,182,183, and motor 1 is rotationally connected with vavuum pump 2 and provides power for vavuum pump 2; The outlet of vavuum pump 2 is connected with air outlet 3, also connects outlet air humidity checkout gear 4 in the outlet of vavuum pump 2, to detect the air humidity of discharging from air outlet 3; The air inlet of vavuum pump 2 is connected with the exit seal of switch 5, be tightly connected with main pipe 181 between the outlet of the inlet of switch 5 and check-valves 7, vacuum automaton 6 also is tightly connected on the main pipe 181 therebetween, check-valves 7 claims check valve again, and the control air can only flow to its outlet from the inlet of check-valves 7; The outlet of the inlet of check-valves 7 and air filter 9 is tightly connected with main pipe 182, and vacuum meter 8 also is tightly connected on the main pipe 182 therebetween; The inlet of air filter 9 is connected with the exit seal of switch 10; One end of the inlet of switch 10 and main pipe 183 is tightly connected, the other end of this section main pipe 183 is an air inlet 16, air inlet 16 is being tightly connected of movably being tightly connected or fixing with seal storage environment 17, and vacuum meter 11, switch 12, switch 14 successively also are tightly connected on this section main pipe 183; One end and the main pipe 183 of switch 12 are tightly connected, the other end with charge into air humidity checkout gear 13 and be tightly connected, the effect that charges into air humidity checkout gear 13 is the air humidity that detects in the seal storage space 17; One end and the main pipe 183 of switch 14 are tightly connected, and the dead observation device 15 of its other end and insect is tightly connected, and the effect of the dead observation device 15 of insect is the death condition and the data of observing insect in the seal storage space 17.

Subpressure grain storing method of the present invention and equipment, equipment are portable or fixed, so-called movable type be air inlet 16 with seal storage space 17 for movably being tightly connected, fixed is that air inlet 16 is being tightly connected of fixing with seal storage space 17.

Under the effect of above-mentioned Subpressure grain storing equipment, humid air is discharged seal storage space 17 rapidly, forms subnormal ambient in the seal storage space 17, and can detect the vacuum condition in the seal storage space 17, observe insect death condition in the seal storage space 17, regulate and control immediately.

Seal storage space 17 is airtight warehouse or container or stacking.

Grain reservation or oil plant or tobacco or linen-cotton etc. in the seal storage environment 17.

Claims

1, Subpressure grain storing equipment, it is characterized in that: its equipment comprises motor (1), vavuum pump (2), air outlet (3), outlet air humidity checkout gear (4), switch (5), vacuum automaton (6), check-valves (7), vacuum meter (8), air filter (9), switch (10), vacuum meter (11), switch (12), charge into air humidity checkout gear (13), switch (14), the dead observation device (15) of insect, air inlet (16), seal storage environment (17), main pipe (181), (182), (183), motor (1) is rotationally connected with vavuum pump (2) and provides power for vavuum pump (2); The outlet of vavuum pump (2) is connected with air outlet (3), also connects outlet air humidity checkout gear (4) in the outlet of vavuum pump (2); The air inlet of vavuum pump (2) is connected with the exit seal of switch (5), is tightly connected with main pipe (181) between the outlet of the inlet of switch (5) and check-valves (7), and vacuum automaton (6) also is tightly connected on the main pipe therebetween (181); The outlet of the inlet of check-valves (7) and air filter (9) is tightly connected with main pipe (182), and vacuum meter (8) also is tightly connected on the main pipe therebetween (182); The inlet of air filter (9) is connected with the exit seal of switch (10); One end of the inlet of switch (10) and main pipe (183) is tightly connected, the other end of this section main pipe (183) is air inlet (16), air inlet (16) and seal storage space (17) are for movably being tightly connected or fixing being tightly connected the vacuum meter (11) that also is tightly connected successively on this section main pipe (183), switch (12), switch (14); One end of switch (12) and main pipe (183) are tightly connected, the other end with charge into air humidity checkout gear (13) and be tightly connected; One end of switch (14) and main pipe (183) are tightly connected, and the dead observation device of its other end and insect (15) is tightly connected.

2, the equipment of narrating according to claim 1, it is characterized in that: for portable or fixed, movable type be air inlet (16) with seal storage space (17) for movably being tightly connected, fixed is that air inlet (16) is being tightly connected of fixing with seal storage space (17).

3, the equipment of narrating according to claim 1 is characterized in that: seal storage space (17) are airtight warehouse or container or stacking.

4, the Subpressure grain storing equipment of narrating according to claim 1 is characterized in that: grain reservation or oil plant or tobacco or linen-cotton in seal storage space (17).